tight race. campaigning in florida today president obama tried to turn the focus to medicare. >> i want you to know, florida, i will never turn medicare into a voucher. >> reporter: the president is enjoying a post convention bump, the latest galup poll showing him up. romney disclosed he would preserve the most popular parts of the president's health care plan, something he said before but went into more detail today. >> i'm not getting rid of all health care reform. there are a number of things that i like that i will put in place. >> reporter: romney said he would allow individuals to add policies to cover family members up to any age and the candidates sparred over taxes. when asked to name a loop hole he targeted romney replied. >> people at the high end, taxpayers will have fewer deductions. >> reporter: he gave no further specifics opening the door for president obama to take a swipe. >> that is not bold leadership. that's bad math. that gets a failing grade. >> reporter: ann romney also e